Advertisement
Battery Display Adjustment
Adjustment Procedure:
vom
(de range)
main board
+
TP (VREF) O——z;——-O
1€802 (i) O=--7
. Apply
de +3.5 V to terminals
for bult-in battery
(BP-2).
. Insert
the disc
(YEDS-18)
and
put the set into
play mode.
. Adjust
RV801
so
that
main
board
IC802 a)
voltage and TP (VREF) voltage are equal.
. If IC802 (11) voltage is heigher than TP (VREF)
voltage
when
turning
the RV80O1
fully counter-
clockwise,
short
the jumper
point (A) as shown
below and adjust RV801.
Adjustment Location: main board
battery
terminals
TP
1c802@
+6 V Adjustment
Adjustment Procedure:
vom
(de range)
main board
|
|
+
TP (+6 eee
. Put the set into service mode (see page 5).
. Connect the VOM
to main board TP (+6 V).
. Adjust
RV401
for
+6+0.1
V
reading
on
the
VOM.
. After
adjustment,
release service mode
(see page
5):
Adjustment Location: main board
TP(+6V)
+3.4 V Adjustment
Adjustment Procedure:
nee )
main board
|
|
+
:
1, Put the set into service mode (see page 5).
TP (+3.4 V)
2. Connect
the VOM
to main
board
test point TP
(+3.4 V).
3. Adjust
the
pattern
connecting
( @ or ©)
to
obtain 3.4 to 3.55 V reading on the VOM.
reading
Te [|e |
oe ee
Xx
O: short
X: open
4. After
adjustment,
release service mode
(see page
5)
Adjustment Location: main board
Rechargeable Voltage Adjustment
5
:
VOM
Adjustment Procedure:
idcrange)
main board
|
|
+
TP (R. aoe:
1. Connect
the VOM
to main
board
test point TP
(R.V).
2. Apply
DC
9V
with
requrated
dc power
supply
from external power jack CN401.
3. Adjust
RV402
for 7.05 — 7.5 V reading
on
the
VOM.
Note: Measure after the VOM reading becomes stable.
Adjustment Location: main board
Advertisement
